69 Barracuda Vert - Gasket and backing lost

Hi everyone.

Been a couple of years since I almost completed my wife Pam's 69 vert. I'm planning on re-installing the convertible top cover this season and I'm missing something.

I'm missing a gasket and probably some sort of metal backing/channel that secures it for the top to windshield seal? Can someone show me the parts disassembled in case I have to make something?

Couple of pics of the area I am talking about.....

Much thanks and appreciation for any help.